unfathomable

adjective

un·​fath·​om·​able ˌən-ˈfa-t͟hə-mə-bəl How to pronounce unfathomable (audio)
: not capable of being fathomed:
b
: impossible to comprehend
unfathomably adverb

Examples of unfathomable in a Sentence

His behavior is completely unfathomable. the unfathomable reaches of space
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Jets’ record is 4-12, their season reaching a level of futility that seemed unfathomable when the year began. Zack Rosenblatt, The Athletic, 29 Dec. 2024 Simply peeling apart the sides of a coffee filter was long considered a feat of unfathomable difficulty. James Somers, The New Yorker, 25 Nov. 2024 These technologies eat up unfathomable energy and data, driving everyone from Musk to Meta to invest billions in new sources of both. Axios, 12 Dec. 2024 The stamina required to do the same show, at the same place, at the same time, 20-odd times a year is unfathomable in the modern TV landscape. David Lachapelle, Vulture, 2 Dec. 2024 See all Example Sentences for unfathomable 

Word History

First Known Use

1640, in the meaning defined above

Time Traveler
The first known use of unfathomable was in 1640

Dictionary Entries Near unfathomable

Cite this Entry

“Unfathomable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unfathomable. Accessed 21 Jan. 2025.

Kids Definition

unfathomable

adjective
un·​fath·​om·​able ˌən-ˈfat͟h-ə-mə-bəl How to pronounce unfathomable (audio)
: not capable of being fathomed:
b
: impossible to understand

More from Merriam-Webster on unfathomable

Last Updated: - Updated example sentences
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